MONTESQUIOU (Robert de). Paul Helleu, painter and engraver. Paris, H. Floury, 1913. Fort in-4, illustrated with 100 plates, 48 of which are in color, including the portrait of Mrs. Helleu, second plate, enhanced by hand. Bound in red half-maroquin with bands, smooth spine decorated. (spotting, affecting notably the binding with deformation, some plates and having stuck the last pages of tables together)